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79e53945 JB |
1 | /* |
2 | * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> | |
f899fc64 | 3 | * Copyright (c) 2007, 2010 Intel Corporation |
79e53945 JB |
4 | * Jesse Barnes <jesse.barnes@intel.com> |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a | |
7 | * copy of this software and associated documentation files (the "Software"), | |
8 | * to deal in the Software without restriction, including without limitation | |
9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
10 | * and/or sell copies of the Software, and to permit persons to whom the | |
11 | * Software is furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice (including the next | |
14 | * paragraph) shall be included in all copies or substantial portions of the | |
15 | * Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
22 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
23 | * DEALINGS IN THE SOFTWARE. | |
24 | */ | |
25 | ||
5a0e3ad6 | 26 | #include <linux/slab.h> |
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27 | #include <linux/i2c.h> |
28 | #include <linux/fb.h> | |
e0dac65e | 29 | #include <drm/drm_edid.h> |
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30 | #include "drmP.h" |
31 | #include "intel_drv.h" | |
0ba0e9e1 | 32 | #include "i915_drv.h" |
79e53945 JB |
33 | |
34 | /** | |
35 | * intel_ddc_probe | |
36 | * | |
37 | */ | |
f899fc64 | 38 | bool intel_ddc_probe(struct intel_encoder *intel_encoder, int ddc_bus) |
79e53945 | 39 | { |
f899fc64 | 40 | struct drm_i915_private *dev_priv = intel_encoder->base.dev->dev_private; |
79e53945 JB |
41 | u8 out_buf[] = { 0x0, 0x0}; |
42 | u8 buf[2]; | |
79e53945 JB |
43 | struct i2c_msg msgs[] = { |
44 | { | |
45 | .addr = 0x50, | |
46 | .flags = 0, | |
47 | .len = 1, | |
48 | .buf = out_buf, | |
49 | }, | |
50 | { | |
51 | .addr = 0x50, | |
52 | .flags = I2C_M_RD, | |
53 | .len = 1, | |
54 | .buf = buf, | |
55 | } | |
56 | }; | |
57 | ||
f899fc64 | 58 | return i2c_transfer(&dev_priv->gmbus[ddc_bus].adapter, msgs, 2) == 2; |
79e53945 JB |
59 | } |
60 | ||
61 | /** | |
62 | * intel_ddc_get_modes - get modelist from monitor | |
63 | * @connector: DRM connector device to use | |
335af9a2 | 64 | * @adapter: i2c adapter |
79e53945 JB |
65 | * |
66 | * Fetch the EDID information from @connector using the DDC bus. | |
67 | */ | |
335af9a2 ZW |
68 | int intel_ddc_get_modes(struct drm_connector *connector, |
69 | struct i2c_adapter *adapter) | |
79e53945 JB |
70 | { |
71 | struct edid *edid; | |
72 | int ret = 0; | |
73 | ||
335af9a2 | 74 | edid = drm_get_edid(connector, adapter); |
79e53945 | 75 | if (edid) { |
335af9a2 ZW |
76 | drm_mode_connector_update_edid_property(connector, edid); |
77 | ret = drm_add_edid_modes(connector, edid); | |
e0dac65e | 78 | drm_edid_to_eld(connector, edid); |
335af9a2 | 79 | connector->display_info.raw_edid = NULL; |
79e53945 JB |
80 | kfree(edid); |
81 | } | |
82 | ||
83 | return ret; | |
84 | } | |
e953fd7b | 85 | |
4a67d391 SH |
86 | static const struct drm_prop_enum_list force_audio_names[] = { |
87 | { -1, "off" }, | |
88 | { 0, "auto" }, | |
89 | { 1, "on" }, | |
3f43c48d CW |
90 | }; |
91 | ||
92 | void | |
93 | intel_attach_force_audio_property(struct drm_connector *connector) | |
94 | { | |
95 | struct drm_device *dev = connector->dev; | |
96 | struct drm_i915_private *dev_priv = dev->dev_private; | |
97 | struct drm_property *prop; | |
3f43c48d CW |
98 | |
99 | prop = dev_priv->force_audio_property; | |
100 | if (prop == NULL) { | |
4a67d391 | 101 | prop = drm_property_create_enum(dev, 0, |
3f43c48d | 102 | "audio", |
4a67d391 | 103 | force_audio_names, |
3f43c48d CW |
104 | ARRAY_SIZE(force_audio_names)); |
105 | if (prop == NULL) | |
106 | return; | |
107 | ||
3f43c48d CW |
108 | dev_priv->force_audio_property = prop; |
109 | } | |
110 | drm_connector_attach_property(connector, prop, 0); | |
111 | } | |
112 | ||
4a67d391 SH |
113 | static const struct drm_prop_enum_list broadcast_rgb_names[] = { |
114 | { 0, "Full" }, | |
115 | { 1, "Limited 16:235" }, | |
e953fd7b CW |
116 | }; |
117 | ||
118 | void | |
119 | intel_attach_broadcast_rgb_property(struct drm_connector *connector) | |
120 | { | |
121 | struct drm_device *dev = connector->dev; | |
122 | struct drm_i915_private *dev_priv = dev->dev_private; | |
123 | struct drm_property *prop; | |
e953fd7b CW |
124 | |
125 | prop = dev_priv->broadcast_rgb_property; | |
126 | if (prop == NULL) { | |
4a67d391 | 127 | prop = drm_property_create_enum(dev, DRM_MODE_PROP_ENUM, |
e953fd7b | 128 | "Broadcast RGB", |
4a67d391 | 129 | broadcast_rgb_names, |
e953fd7b CW |
130 | ARRAY_SIZE(broadcast_rgb_names)); |
131 | if (prop == NULL) | |
132 | return; | |
133 | ||
e953fd7b CW |
134 | dev_priv->broadcast_rgb_property = prop; |
135 | } | |
136 | ||
137 | drm_connector_attach_property(connector, prop, 0); | |
138 | } |